Home / 163,923.40-245,885.10-80,806.60

Finding the Fourth Proportional to 163,923.40, 245,885.10 and 80,806.60

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Solution

The fourth proportional to 163,923.40, 245,885.10 and 80,806.60 is: 121,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,923.40 : 245,885.10 = 80,806.60 : x
  2. Step 2: Convert to fraction form
    163,923.40/245,885.10 = 80,806.60/x
  3. Step 3: Cross multiply
    163,923.40x = 245,885.10 × 80,806.60
  4. Step 4: Simplify right side
    163,923.40x = 19,869,138,921.66
  5. Step 5: Solve for x
    x = 19,869,138,921.66/163,923.40
  6. Step 6: Final answer
    x = 121,209.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.